150 to 200 Yd. Whisper "Deer" bullet

[cappi]

Thinking about reloading a supersonic deer round to cover the 150 to 200 yard distance. Do not think I want to use my 240 grain match bullets. Most likely they will pass completely thru at that distance but not expand at all and punch a small exit hole. I was wondering how the Hornady 155 or 168 grain A Max will perform. I know that at .308 velocities these bullets (especially the 155 gr.) fragment violently. I figure the extra length of these bullets is needed at that distance (reduced velocity ) to gain sufficient penetration and MAY offer some expansion as opposed to the 240 gr. match heavier constructed bullets. Any commemts/experience pro or con ? My twist is 1 in 8 and the barrel length is a 14 inch contender. Yes I am familiar with how well the 125 gr. bullets perform at the "closer" distances.